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WO/2021/078861A1 |
The present invention relates to heterophasic polypropylene compositions comprising a propylene homo- or copolymer forming a crystalline fraction as a matrix and an amorphous propylene ethylene elastomer as a soluble fraction dispersed i...
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WO/2021/079199A1 |
A process of producing a composition comprising a copolymer of ethylene and one or more C4-C8 α-olefins, may include copolymerizing the ethylene and the one or more C4-C8 α-olefins in the presence of a procatalyst and an alkylaluminum ...
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WO/2021/080249A1 |
The present invention relates to a method for producing a catalyst for olefin polymerization. Specifically, the present invention relates to a method for producing a supported hybrid metallocene catalyst capable of preparing a polyolefin...
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WO/2021/078857A1 |
The present invention relates to a heterophasic polypropylene composition comprising two different heterophasic propylene copolymers. The heterophasic polypropylene composition has higher stiffness, than expected from the mere weighted a...
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WO/2021/079904A1 |
The present invention provides: a fluorosulfonyl group-containing fluoropolymer capable of producing a solid polymer electrolyte membrane having excellent conductivity and hot water resistance, and a method for producing same; an acid-ty...
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WO/2021/076640A1 |
Embodiments are directed to anionic rubber polymerization processes conducted in a non-aqueous dispersion utilizing conjugated diene and vinyl aromatic monomers and a dispersing agent formed in-situ during the polymerization process.
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WO/2021/075788A1 |
The present invention relates to a method for preparing an olefin polymerization hybrid catalyst, an olefin polymerization hybrid catalyst, and an olefin-based polymer. A supported hybrid metallocene catalyst for olefin polymerization, p...
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WO/2021/075801A1 |
The present invention relates to a hybrid catalyst composition comprising different transition metal compounds, an olefin polymerization catalyst comprising same, and methods for preparing the composition and the catalyst. Specifically, ...
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WO/2021/070131A1 |
The present invention relates to a homogeneous liquid/fluid combination of photoinitiators with improved formulability, reactivity and surface curing performances, more particularly to novel combinations of acylphosphine oxides and ketoc...
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WO/2021/071226A1 |
A polyethylene according to the present invention has a molecular structure with a high content of moderate to high molecular weight domains and thus makes deoxidation, dehydration, and drying processes easy upon chlorination and allows ...
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WO/2021/070036A1 |
Rotomolded articles, especially flexible rotomolded articles are made from an ethylene interpolymer product having a melt index, I2 of from 2.5 to 8.0 g/10min, a density of from 0.905 to 0.920 g/cm3; and a Dilution Index, Yd, greater tha...
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WO/2021/072206A1 |
Described herein are compositions and methods for processing photopolymers based on olefin metathesis. The compositions and methods comprise latent ruthenium complexes and photoacids and/or photoacid generators.
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WO/2021/071154A1 |
The present invention provides: polyethylene exhibiting an improved low temperature sealing property through an increase in the amount and molecular weight of a low crystalline polymer; and a preparation method therefor.
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WO/2021/066579A1 |
The present invention provides a hybrid supported metallocene catalyst and a process for preparing a polyethylene copolymer using same, the hybrid supported metallocene catalyst being useful for preparing a polyethylene copolymer enablin...
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WO/2021/067148A1 |
Disclosed are metallocene compounds, catalyst compositions comprising at least one metallocene compound, processes for polymerizing olefins, methods for making catalyst compositions, olefin polymers and articles made from olefin polymers...
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WO/2021/064546A1 |
The copolymerization of ethylene with an optional comonomer is conducted in the presence of a catalyst having a specific aryloxy ether ligand structure. The process enables very high conversions of ethylene to polyethylene at very short ...
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WO/2021/064545A1 |
The copolymerization of ethylene with an optional comonomer is conducted in the presence of a catalyst having a specific aryloxy ether ligand structure. The process enables very high conversions of ethylene to polyethylene at very short ...
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WO/2021/063930A1 |
A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, and an internal electron donor according to Formula (I), said process ...
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WO/2021/064078A1 |
The present invention relates to optionally substituted 1,3-dimethoxypropanes and 3- methoxypropylamines, and more particularly to their use as internal donors in Ziegler-Natta catalysts to obtain polymers with desirable properties. The ...
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WO/2021/064080A1 |
The present invention relates to substituted 2-isopropyl-1,3-dialkoxypropanes, and more particularly to their use as internal donors in Ziegler-Natta catalysts to obtain ethylene (co)polymers with desirable properties The present disclos...
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WO/2021/067184A1 |
Processes of polymerizing olefins include contacting ethylene, a (C3-C40)alpha-olefin comonomer, and a solvent in the presence of a chain transfer agent and a catalyst system, the catalyst system comprising a metal-ligand complex accordi...
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WO/2021/066398A1 |
The present invention provides: a pellet-type polypropylene resin composition exhibiting excellent heat resistance and oxidation stability, and exhibiting high fluidity without using a decomposition accelerator so as to enable fiber atte...
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WO/2021/063898A1 |
The invention relates to an ultrahigh molecular weight polyethylene resin having a weight average molecular weight of 1.0×106 g/mol to 15.0×106 g/mol and a molecular weight distribution between 1.2 to 6.0. The invention also relates to...
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WO/2021/066437A1 |
The present invention provides an ethylene/1-hexene copolymer having excellent long-term properties and processability so as to be useful in the manufacture of a high-pressure-resistant heating pipe, a PE-RT pipe, a large-diameter pipe, ...
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WO/2021/066491A1 |
The present invention relates to a polypropylene-based composite material comprising: (A) polypropylene; and (B) an olefin-based polymer satisfying the requirements of: (1) a melt index (MI, 190°C and 2.16 kg load conditions) of 0.1-10....
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WO/2021/066486A1 |
The present invention relates to an olefin-based polymer satisfying the requirements of: (1) a melt index (MI, 190°C and 2.16 kg load conditions) of 0.1-10.0 g/10 min; (2) a density (d) of 0.860-0.880 g/cc; and (3) T(90)-T(50)≤50 and ...
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WO/2021/066561A1 |
The present invention relates to a modified conjugated diene-based polymer, a method for producing same, and a rubber composition comprising same. The present invention relates to a modified conjugated diene-based polymer having a low hy...
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WO/2021/066550A1 |
The present invention relates to a method for purifying a polyalkylaluminoxane-containing solution using a hydroxy group-containing compound, a method for preparing a catalyst composition using same, a catalyst composition prepared using...
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WO/2021/066490A1 |
The present invention relates to an olefin-based polymer meeting the requirements that (1) the melt index (MI, a condition of 190°C and a load of 2.16 kg) is 0.1-10.0 g/10 min, (2) the melting temperature in differential scanning calori...
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WO/2021/058742A1 |
A heterophasic polypropylene copolymer having an MFR2 of 0.05 to 20 g/10min (ISO 1133 at 230°C with a loading of 2.16 kg) and a melting point (Tm) of 156 to 164°C (measured by DSC according to ISO 11357) wherein the heterophasic polypr...
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WO/2021/058740A1 |
A metallocene complex of formula (I): each X is a sigma-ligand; in the group R2Si- at least one R is methyl or ethyl, and the other R is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl, pentyl, hexyl, cyclohexyl and...
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WO/2021/058926A1 |
The present invention relates to a composition comprising at least one solid organic peroxide, at least one solid phlegmatizing agent, preferably having a melting point above or equal to 40°C, and at least one solid binder having an ent...
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WO/2021/060908A1 |
The present invention provides a supported hybrid catalyst, and a method for preparing a polyolefin by using same, the supported hybrid catalyst comprising two or more types of transition metal compounds having a specific chemical struct...
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WO/2021/060833A1 |
The present invention relates to a method for producing a conjugated diene-based polymer, characterized by using a saponified dimer acid as an emulsifier in a polymerization initiation step and, following the initiation of polymerization...
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WO/2021/061597A1 |
A nucleating agent-free and LLDPE-free polyolefin composition for making films with enhanced barrier properties against water vapor and oxygen gas. Related aspects include formulations, manufactured articles, films, and methods.
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WO/2021/060942A1 |
The present invention relates to a neodymium-catalysis modified conjugated diene polymer having excellent filler affinity, a method for producing same, and a rubber composition comprising same, and provides a neodymium-catalysis modified...
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WO/2021/053295A1 |
The invention relates to an ethylene copolymer and a 1,3-diene copolymer of formula CH2=CR-CH=CH2, said copolymer having an amine function, and the symbol R representing a hydrocarbon chain having 3 to 20 carbon atoms. Such a copolymer i...
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WO/2021/055430A1 |
A Ziegler-Natta catalyst composition is disclosed. The catalyst composition is formed from a procatalyst containing a magnesium moiety and a titanium moiety. At least one internal electron donor is incorporated into the procatalyst. Duri...
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WO/2021/054785A1 |
The present invention relates to a method that can produce a modified conjugated diene polymer having excellent physical properties such as tensile properties and viscoelastic properties with a high modification ratio.
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WO/2021/052733A1 |
A solid catalyst component for the polymerization of olefins comprising a magnesium halide, a titanium compound having at least a Ti-halogen bond and at least two electron donor compounds one of which being selected from 1,3 diethers (DE...
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WO/2021/055212A1 |
A Ziegler-Natta catalyst composition is disclosed. The catalyst composition includes an internal electron donor with improved polymerization kinetics, a long lifetime, improved stereoselectivity and/or improved hydrogen response.
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WO/2021/052797A1 |
The present invention relates to compounds according to formula I wherein: • each R1-R10 may individually be H, a halogen, an alkoxy moiety, a siloxy moiety, a nitrogen-containing moiety, an alkyl moiety, an aryl moiety, or an aralkyl ...
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WO/2021/048030A1 |
The present invention relates to compounds according to formula I, wherein: R1 is a cyclopentadienyl moiety or a moiety comprising a cyclopentadienyl ring structure; R2 is a moiety M(R5)2 or MR5, wherein M is a metal selected from hafniu...
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WO/2021/049269A1 |
In one embodiment of the present invention, glass powder contains aluminum, silicon, and copper and/or vanadium and is used for a chemical polymerization initiator.
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WO/2021/049537A1 |
The present invention provides: a three-dimensional control catalyst suitable for the polymerization of a wide range of monomers and used in radical polymerization whereby polymerization that controls both molecular weight (molecular wei...
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WO/2021/051103A1 |
Provided are graft copolymers, methods of making graft copolymers, polymer blends made from graft copolymers, methods of making polymer blends, and articles made from graft copolymers and blends thereof. The graft copolymers may be made ...
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WO/2021/049627A1 |
Provided are: a polymerization catalyst formed from a polymer having nitrogen-containing functional groups; and a polymer production method having a step for obtaining a polymer by polymerizing vinyl monomers in the presence of an organi...
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WO/2021/050248A1 |
A colloidal suspension includes an organic phase and a complex of Formula I as precursor for Ziegler-Natta catalyst synthesis: XTiClp(OR1)4-p · YMg(OR2)q(OR3)t (I)· In Formula I, a molar ratio of X to Y (X/Y) is from 0.2 to 5.0, p is 0...
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WO/2021/045537A1 |
The present invention relates to a rubber composition having excellent abrasion resistance and improved viscoelastic properties by controlling compatibility between rubber components, and a tire manufactured using same. The present inven...
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WO/2021/042258A1 |
The present invention discloses a bipyridine iron complex, preparation method thereof and application in polymerization of a conjugated diene, and belongs to the field of catalytic polymerization of a conjugated diene. To address the exi...
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